"""# ### 谜题描述 There is an infinite set generated as follows: * 1 is in this set. * If x is in this set, x ⋅ a and x+b both are in this set. For example, when a=3 and b=6, the five smallest elements of the set are: * 1, * 3 (1 is in this set, so 1⋅ a=3 is in this set), * 7 (1 is in this set, so 1+b=7 is in this set), * 9 (3 is in this set, so 3⋅ a=9 is in this set), * 13 (7 is in this set, so 7+b=13 is in this set). Given positive integers a, b, n, determine if n is in this set. Input The input consists of multiple test cases. The first line contains an integer t (1≤ t≤ 10^5) — the number of test cases. The description of the test cases follows. The only line describing each test case contains three integers n, a, b (1≤ n,a,b≤ 10^9) separated by a single space. Output For each test case, print \"Yes\" if n is in this set, and \"No\" otherwise. You can print each letter in any case. Example Input 5 24 3 5 10 3 6 2345 1 4 19260817 394 485 19260817 233 264 Output Yes No Yes No Yes Note In the first test case, 24 is generated as follows: * 1 is in this set, so 3 and 6 are in this set; * 3 is in this set, so 9 and 8 are in this set; * 8 is in this set, so 24 and 13 are in this set. Thus we can see 24 is in this set. The five smallest elements of the set in the second test case is described in statements. We can see that 10 isn't among them. Here is a reference code to solve this task. You can use this to help you genereate cases or validate the solution. ```python # Enter your code here. Read input from STDIN. Print output to STDOUT# =============================================================================================== # importing some useful libraries from __future__ import division, print_function from fractions import Fraction import sys import os from io import BytesIO, IOBase from itertools import * import bisect from heapq import * from math import ceil, floor from copy import * from collections import deque, defaultdict from collections import Counter as counter # Counter(list) return a dict with {key: count} from itertools import combinations # if a = [1,2,3] then print(list(comb(a,2))) -----> [(1, 2), (1, 3), (2, 3)] from itertools import permutations as permutate from bisect import bisect_left as bl from operator import * # If the element is already present in the list, # the left most position where element has to be inserted is returned. from bisect import bisect_right as br from bisect import bisect # If the element is already present in the list, # the right most position where element has to be inserted is returned # ============================================================================================== # fast I/O region BUFSIZE = 8192 from sys import stderr class FastIO(IOBase): newlines = 0 def __init__(self, file): self._fd = file.fileno() self.buffer = BytesIO() self.writable = \"A\" in file.mode or \"r\" not in file.mode self.write = self.buffer.write if self.writable else None def read(self): while True: b = os.read(self._fd, max(os.fstat(self._fd).st_size, BUFSIZE)) if not b: break ptr = self.buffer.tell() self.buffer.seek(0, 2), self.buffer.write(b), self.buffer.seek(ptr) self.newlines = 0 return self.buffer.read() def readline(self): while self.newlines == 0: b = os.read(self._fd, max(os.fstat(self._fd).st_size, BUFSIZE)) self.newlines = b.count(b\"\n\") + (not b) ptr = self.buffer.tell() self.buffer.seek(0, 2), self.buffer.write(b), self.buffer.seek(ptr) self.newlines -= 1 return self.buffer.readline() def flush(self): if self.writable: os.write(self._fd, self.buffer.getvalue()) self.buffer.truncate(0), self.buffer.seek(0) class IOWrapper(IOBase): def __init__(self, file): self.buffer = FastIO(file) self.flush = self.buffer.flush self.writable = self.buffer.writable self.write = lambda s: self.buffer.write(s.encode(\"ascii\")) self.read = lambda: self.buffer.read().decode(\"ascii\") self.readline = lambda: self.buffer.readline().decode(\"ascii\") def print(*args, **kwargs): \"\"\"Prints the values to a stream, or to sys.stdout by default.\"\"\" sep, file = kwargs.pop(\"sep\", \" \"), kwargs.pop(\"file\", sys.stdout) at_start = True for A in args: if not at_start: file.write(sep) file.write(str(A)) at_start = False file.write(kwargs.pop(\"end\", \"\n\")) if kwargs.pop(\"flush\", False): file.flush() if sys.version_info[0] < 3: sys.stdin, sys.stdout = FastIO(sys.stdin), FastIO(sys.stdout) else: sys.stdin, sys.stdout = IOWrapper(sys.stdin), IOWrapper(sys.stdout) # inp = lambda: sys.stdin.readline().rstrip(\"\r\n\") # =============================================================================================== ### START ITERATE RECURSION ### from types import GeneratorType def iterative(f, stack=[]): def wrapped_func(*args, **kwargs): if stack: return f(*args, **kwargs) to = f(*args, **kwargs) while True: if type(to) is GeneratorType: stack.append(to) to = next(to) continue stack.pop() if not stack: break to = stack[-1].send(to) return to return wrapped_func #### END ITERATE RECURSION #### ########################### # Sorted list class SortedList: def __init__(self, iterable=[], _load=200): \"\"\"Initialize sorted list instance.\"\"\" values = sorted(iterable) self._len = _len = len(values) self._load = _load self._lists = _lists = [values[start:start + _load] for start in range(0, _len, _load)] self._list_lens = [len(_list) for _list in _lists] self._mins = [_list[0] for _list in _lists] self._fen_tree = [] self._rebuild = True def _fen_build(self): \"\"\"Build a fenwick tree instance.\"\"\" self._fen_tree[:] = self._list_lens _fen_tree = self._fen_tree for start in range(len(_fen_tree)): if start | start + 1 < len(_fen_tree): _fen_tree[start | start + 1] += _fen_tree[start] self._rebuild = False def _fen_update(self, index, value): \"\"\"Update `fen_tree[index] += value`.\"\"\" if not self._rebuild: _fen_tree = self._fen_tree while index < len(_fen_tree): _fen_tree[index] += value index |= index + 1 def _fen_query(self, end): \"\"\"Return `sum(_fen_tree[:end])`.\"\"\" if self._rebuild: self._fen_build() _fen_tree = self._fen_tree A = 0 while end: A += _fen_tree[end - 1] end &= end - 1 return A def _fen_findkth(self, k): \"\"\"Return a pair of (the largest `idx` such that `sum(_fen_tree[:idx]) <= k`, `k - sum(_fen_tree[:idx])`).\"\"\" _list_lens = self._list_lens if k < _list_lens[0]: return 0, k if k >= self._len - _list_lens[-1]: return len(_list_lens) - 1, k + _list_lens[-1] - self._len if self._rebuild: self._fen_build() _fen_tree = self._fen_tree idx = -1 for d in reversed(range(len(_fen_tree).bit_length())): right_idx = idx + (1 << d) if right_idx < len(_fen_tree) and k >= _fen_tree[right_idx]: idx = right_idx k -= _fen_tree[idx] return idx + 1, k def _delete(self, pos, idx): \"\"\"Delete value at the given `(pos, idx)`.\"\"\" _lists = self._lists _mins = self._mins _list_lens = self._list_lens self._len -= 1 self._fen_update(pos, -1) del _lists[pos][idx] _list_lens[pos] -= 1 if _list_lens[pos]: _mins[pos] = _lists[pos][0] else: del _lists[pos] del _list_lens[pos] del _mins[pos] self._rebuild = True def _loc_left(self, value): \"\"\"Return an index pair that corresponds to the first position of `value` in the sorted list.\"\"\" if not self._len: return 0, 0 _lists = self._lists _mins = self._mins lo, pos = -1, len(_lists) - 1 while lo + 1 < pos: mi = (lo + pos) >> 1 if value <= _mins[mi]: pos = mi else: lo = mi if pos and value <= _lists[pos - 1][-1]: pos -= 1 _list = _lists[pos] lo, idx = -1, len(_list) while lo + 1 < idx: mi = (lo + idx) >> 1 if value <= _list[mi]: idx = mi else: lo = mi return pos, idx def _loc_right(self, value): \"\"\"Return an index pair that corresponds to the last position of `value` in the sorted list.\"\"\" if not self._len: return 0, 0 _lists = self._lists _mins = self._mins pos, hi = 0, len(_lists) while pos + 1 < hi: mi = (pos + hi) >> 1 if value < _mins[mi]: hi = mi else: pos = mi _list = _lists[pos] lo, idx = -1, len(_list) while lo + 1 < idx: mi = (lo + idx) >> 1 if value < _list[mi]: idx = mi else: lo = mi return pos, idx def add(self, value): \"\"\"Add `value` to sorted list.\"\"\" _load = self._load _lists = self._lists _mins = self._mins _list_lens = self._list_lens self._len += 1 if _lists: pos, idx = self._loc_right(value) self._fen_update(pos, 1) _list = _lists[pos] _list.insert(idx, value) _list_lens[pos] += 1 _mins[pos] = _list[0] if _load + _load < len(_list): _lists.insert(pos + 1, _list[_load:]) _list_lens.insert(pos + 1, len(_list) - _load) _mins.insert(pos + 1, _list[_load]) _list_lens[pos] = _load del _list[_load:] self._rebuild = True else: _lists.append([value]) _mins.append(value) _list_lens.append(1) self._rebuild = True def discard(self, value): \"\"\"Remove `value` from sorted list if it is a member.\"\"\" _lists = self._lists if _lists: pos, idx = self._loc_right(value) if idx and _lists[pos][idx - 1] == value: self._delete(pos, idx - 1) def remove(self, value): \"\"\"Remove `value` from sorted list; `value` must be a member.\"\"\" _len = self._len self.discard(value) if _len == self._len: raise ValueError('{0!r} not in list'.format(value)) def pop(self, index=-1): \"\"\"Remove and return value at `index` in sorted list.\"\"\" pos, idx = self._fen_findkth(self._len + index if index < 0 else index) value = self._lists[pos][idx] self._delete(pos, idx) return value def bisect_left(self, value): \"\"\"Return the first index to insert `value` in the sorted list.\"\"\" pos, idx = self._loc_left(value) return self._fen_query(pos) + idx def bisect_right(self, value): \"\"\"Return the last index to insert `value` in the sorted list.\"\"\" pos, idx = self._loc_right(value) return self._fen_query(pos) + idx def count(self, value): \"\"\"Return number of ofinansurrences of `value` in the sorted list.\"\"\" return self.bisect_right(value) - self.bisect_left(value) def __len__(self): \"\"\"Return the size of the sorted list.\"\"\" return self._len def __getitem__(self, index): \"\"\"Lookup value at `index` in sorted list.\"\"\" pos, idx = self._fen_findkth(self._len + index if index < 0 else index) return self._lists[pos][idx] def __delitem__(self, index): \"\"\"Remove value at `index` from sorted list.\"\"\" pos, idx = self._fen_findkth(self._len + index if index < 0 else index) self._delete(pos, idx) def __contains__(self, value): \"\"\"Return true if `value` is an element of the sorted list.\"\"\" _lists = self._lists if _lists: pos, idx = self._loc_left(value) return idx < len(_lists[pos]) and _lists[pos][idx] == value return False def __iter__(self): \"\"\"Return an iterator over the sorted list.\"\"\" return (value for _list in self._lists for value in _list) def __reversed__(self): \"\"\"Return a reverse iterator over the sorted list.\"\"\" return (value for _list in reversed(self._lists) for value in reversed(_list)) def __repr__(self): \"\"\"Return string representation of sorted list.\"\"\" return 'SortedList({0})'.format(list(self)) # =============================================================================================== # some shortcuts mod = 1000000007 def YES(): print(\"YES\") def NO(): print(\"NO\") def Yes(): print(\"Yes\") def No(): print(\"No\") def pow(A, B, p): res = 1 # Initialize result A = A % p # Update A if it is more , than or equal to p if (A == 0): return 0 while (B > 0): if ((B & 1) == 1): # If B is odd, multiply, A with result res = (res * A) % p B = B >> 1 # B = B/2 A = (A * A) % p return res from functools import reduce def numberOfSetBits(n): n = (n & 0x5555555555555555) + ((n & 0xAAAAAAAAAAAAAAAA) >> 1) n = (n & 0x3333333333333333) + ((n & 0xCCCCCCCCCCCCCCCC) >> 2) n = (n & 0x0F0F0F0F0F0F0F0F) + ((n & 0xF0F0F0F0F0F0F0F0) >> 4) n = (n & 0x00FF00FF00FF00FF) + ((n & 0xFF00FF00FF00FF00) >> 8) n = (n & 0x0000FFFF0000FFFF) + ((n & 0xFFFF0000FFFF0000) >> 16) n = (n & 0x00000000FFFFFFFF) + ((n & 0xFFFFFFFF00000000) >> 32) # This last & isn't strictly necessary. return n def factors(n): return set(reduce(list.__add__, ([start, n // start] for start in range(1, int(n ** 0.5) + 1) if n % start == 0))) class MergeFind: def __init__(self, n): self.parent = list(range(n)) self.size = [1] * n self.num_sets = n # self.lista = [[_] for _ in range(n)] def find(self, a): to_update = [] while a != self.parent[a]: to_update.append(a) a = self.parent[a] for b in to_update: self.parent[b] = a return self.parent[a] def merge(self, a, b): a = self.find(a) b = self.find(b) if a == b: return if self.size[a] < self.size[b]: a, b = b, a self.num_sets -= 1 self.parent[b] = a self.size[a] += self.size[b] # self.lista[a] += self.lista[b] # self.lista[b] = [] def set_size(self, a): return self.size[self.find(a)] def __len__(self): return self.num_sets def gcd(a, b): if a == b: return a while b > 0: a, b = b, a % b return a def lcm(a, b): return abs((a // gcd(a, b)) * b) inf = float(\"inf\") ##############Find sum of product of subsets of size k in a array # ar=[0,1,2,3] # k=3 # n=len(ar)-1 # dp=[0]*(n+1) # dp[0]=1 # for pos in range(1,n+1): # dp[pos]=0 # l=max(1,k+pos-n-1) # for j in range(min(pos,k),l-1,-1): # dp[j]=dp[j]+ar[pos]*dp[j-1] # print(dp[k]) ##two pointer method # l=0 # for r in range(n): # add(r) # while(not ok(l,r)):#l,r included # remove(l) # l+=1 # #[l,r] is valid # if(ok()): # do() # #========================== # r=-1 # for l in range(n): # while (r + 1 < l): # r=l-1 # reset state # # # # while(r+10): # x=n%p # y=r%p # n//=p # r//=p # ans*=comb(x,y) # ans%=p # return ans # def inp(): return sys.stdin.readline().rstrip(\"\r\n\") # for fast input def N(): return int(inp()) def out(var): sys.stdout.write(str(var)) # for fast output, always take string def lis(): return list(map(int, inp().split())) def stringlis(): return list(map(str, inp().split())) def sep(): return map(int, inp().split()) def strsep(): return map(str, inp().split()) def fsep(): return map(float, inp().split()) def nextline(): out(\"\n\") # as stdout.write always print sring. def arr1d(n, v): return [v] * n def arr2d(n, m, v): return [[v] * m for _ in range(n)] def arr3d(n, m, p, v): return [[[v] * p for _ in range(m)] for sta in range(n)] def ceil(a, b): return (a + b - 1) // b # co-ordinate compression # ma={s:idx for idx,s in enumerate(sorted(set(l+r)))} # mxn=100005 # lrg=[0]*mxn # for start in range(2,mxn-3): # if (lrg[start]==0): # for j in range(start,mxn-3,start): # lrg[j]=start test_count = 1 def testcase(t): global test_count for p in range(t): global test_count # print(\"Case #{}:\".format(test_count), end=\" \") solve() test_count += 1 def solve(): n,a,b=sep() now=1 while(1): tempo=n-now if(tempo<0): No() return if(tempo%b==0): Yes() return now*=a if(a==1): No() return #solve() testcase(N()) ``` 请完成上述谜题的训练场环境类实现,包括所有必要的方法。 """ from bootcamp import Basebootcamp import random import re from bootcamp import Basebootcamp class Bplusandmultiplybootcamp(Basebootcamp): def __init__(self, a_min=1, a_max=100, b_min=1, b_max=100, n_min=1, n_max=10**9, seed=None): self.a_min = a_min self.a_max = a_max self.b_min = b_min self.b_max = b_max self.n_min = n_min self.n_max = n_max self.rng = random.Random(seed) def case_generator(self): # 强制生成20% a=1的案例以覆盖特殊情况 if self.rng.random() < 0.2: a = 1 else: a = self.rng.randint(self.a_min, self.a_max) b = self.rng.randint(self.b_min, self.b_max) # 当a=1时,确保生成有效的正例和反例 if a == 1: if self.rng.random() < 0.5: # 生成有效n=1 + k*b k = self.rng.randint(0, 10) n = 1 + k * b else: # 生成无效n while True: n = self.rng.randint(self.n_min, self.n_max) if (n - 1) % b != 0: break else: # 生成可能合法的普通案例 steps = self.rng.randint(0, 5) now = 1 for _ in range(steps): if self.rng.random() < 0.5: now *= a else: now += b n = self.rng.choice([ now * a**self.rng.randint(0,3) + b*self.rng.randint(0,10), self.rng.randint(self.n_min, self.n_max) ]) return {'n': n, 'a': a, 'b': b} @staticmethod def prompt_func(question_case): n = question_case['n'] a = question_case['a'] b = question_case['b'] return f"""你正在解决一个数学谜题,需要判断数字{n}是否属于特定无限集合。集合生成规则如下: 1. 初始元素为1 2. 如果x在集合中,则x*a和x+b也在集合中 请判断给定数值n={n}(a={a}, b={b})是否属于该集合,并将答案(Yes/No)包裹在[answer]标签中,如:[answer]Yes[/answer]。""" @staticmethod def extract_output(output): matches = re.findall(r'\[answer\](.*?)\[/answer\]', output, re.DOTALL | re.IGNORECASE) if not matches: return None last_match = matches[-1].strip().lower() return last_match.capitalize() if last_match in ('yes', 'no') else None @classmethod def _verify_correction(cls, solution, identity): n = identity['n'] a = identity['a'] b = identity['b'] expected = 'Yes' if cls.check_in_set(n, a, b) else 'No' return solution.strip().lower() == expected.lower() @staticmethod def check_in_set(n, a, b): if n == 1: return True max_multiplier = 0 current = 1 while current <= n: if (n - current) % b == 0: return True if a == 1: return False # 避免无限循环 prev = current current *= a if current == prev: # 防止a=1时的无限循环 break return False